Liga TDP
| Organising body | Federación Mexicana de Fútbol (FMF) | 
|---|---|
| Founded | 1967 (as Tercera División de México) | 
| Country | Mexico | 
| Confederation | CONCACAF | 
| Divisions | 17 groups | 
| Number of clubs | 223 | 
| Level on pyramid | 4 | 
| Promotion to | Liga Premier | 
| Domestic cup(s) | Copa Conecta | 
| Current champions | Héroes de Zaci (2nd title) | 
| Most championships | Manzanillo Tecos Cihuatlán Atlético Tecomán Real Cuautitlán Héroes de Zaci (2 titles each) | 
| Website | ligatdp.mx | 
| Current: 2024–25 Liga TDP season | |
Liga TDP is a professional association football league in Mexico and the fourth level of the Mexican football league system. Formerly known as Tercera División de México (1967–2017). It has 223 participating clubs, divided into 17 regional groups by geographic location. In the 2009–10 season, the format of the tournament has been reorganized to a home and away format, which all teams will play in their respective group. The 17 groups consist of teams which are eligible to play in the liguilla de ascenso for three promotion spots, teams which are affiliated with teams in the Liga MX, Liga de Expansión MX and Liga Premier, which are not eligible for promotion but will play that who the better filial team in a sixteen team filial final phase tournament for the entire season.